Examples with ConstraintCreator org.neo4j.graphdb.schema.ConstraintCreator used on opensource projects

Example 1 with ConstraintCreator

use of org.neo4j.graphdb.schema.ConstraintCreator in project neo4j by neo4j.

the class ConstraintsInHAIT method creatingConstraintOnSlaveIsNotAllowed.

@Test
public void creatingConstraintOnSlaveIsNotAllowed() throws Exception {
    // given
    ClusterManager.ManagedCluster cluster = clusterRule.startCluster();
    HighlyAvailableGraphDatabase slave = cluster.getAnySlave();
    slave.beginTx();
    try {
        ConstraintCreator constraintCreator = slave.schema().constraintFor(Label.label("LabelName")).assertPropertyIsUnique("PropertyName");
        // when
        constraintCreator.create();
        fail("should have thrown exception");
    } catch (InvalidTransactionTypeException e) {
        assertThat(e.getMessage(), equalTo("Modifying the database schema can only be done on the master server, " + "this server is a slave. Please issue schema modification commands directly to the master."));
    }
}

Example 2 with ConstraintCreator

use of org.neo4j.graphdb.schema.ConstraintCreator in project neo4j by neo4j.

the class GraphDbHelper method createPropertyUniquenessConstraint.

public ConstraintDefinition createPropertyUniquenessConstraint(String labelName, List<String> propertyKeys) {
    try (Transaction tx = database.getGraph().beginTransaction(implicit, AUTH_DISABLED)) {
        ConstraintCreator creator = database.getGraph().schema().constraintFor(label(labelName));
        for (String propertyKey : propertyKeys) {
            creator = creator.assertPropertyIsUnique(propertyKey);
        }
        ConstraintDefinition result = creator.create();
        tx.success();
        return result;
    }
}

Example 3 with ConstraintCreator

use of org.neo4j.graphdb.schema.ConstraintCreator in project neo4j by neo4j.

the class DatabaseActions method createPropertyUniquenessConstraint.

public ConstraintDefinitionRepresentation createPropertyUniquenessConstraint(String labelName, Iterable<String> propertyKeys) {
    ConstraintCreator constraintCreator = graphDb.schema().constraintFor(label(labelName));
    for (String key : propertyKeys) {
        constraintCreator = constraintCreator.assertPropertyIsUnique(key);
    }
    ConstraintDefinition constraintDefinition = constraintCreator.create();
    return new ConstraintDefinitionRepresentation(constraintDefinition);
}